EEG Signal Quality of a Subcutaneous Recording System Compared to Standard Surface Electrodes

Figure 1

Experimental setup. (1A) External disc for power and signal transmission to and from the implanted device. (1B) Logging device to store EEG recorded by implanted device. (2A and 2B) Cup electrodes covered by protecting paper for surface EEG recording. (2C) Ground wire for surface EEG recording. (3) Implantable device with disc for power and signal transmission.